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Finding the Fourth Proportional to 436,518.54, 654,557.70 and 132,854.44

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Solution

The fourth proportional to 436,518.54, 654,557.70 and 132,854.44 is: 199,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,518.54 : 654,557.70 = 132,854.44 : x
  2. Step 2: Convert to fraction form
    436,518.54/654,557.70 = 132,854.44/x
  3. Step 3: Cross multiply
    436,518.54x = 654,557.70 × 132,854.44
  4. Step 4: Simplify right side
    436,518.54x = 86,960,896,546.45
  5. Step 5: Solve for x
    x = 86,960,896,546.45/436,518.54
  6. Step 6: Final answer
    x = 199,214.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.